Abstract

A novel method for measuring the linewidth of each laser and channel spacing in a multichannel transmission system is presented. Using the dependence of the Stokes frequency shift on the pump wavelength in stimulated Brillouin scattering, we are able to construct a delayed self-heterodyne interferometer that can measure the linewidths and channel spacing simultaneously.

© 1998 Optical Society of America

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References

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  1. T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
    [CrossRef]
  2. J. A. Constable and I. H. White, Electron. Lett. 30, 140 (1994).
    [CrossRef]
  3. G. P. Agrawal, Nonlinear Fiber Optics, 2nd ed. (Academic, New York, 1995), Chap. 9.
  4. D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
    [CrossRef]
  5. R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
    [CrossRef]
  6. K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
    [CrossRef]

1996 (1)

K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
[CrossRef]

1994 (2)

J. A. Constable and I. H. White, Electron. Lett. 30, 140 (1994).
[CrossRef]

R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
[CrossRef]

1980 (1)

T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
[CrossRef]

1979 (1)

D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
[CrossRef]

Agrawal, G. P.

G. P. Agrawal, Nonlinear Fiber Optics, 2nd ed. (Academic, New York, 1995), Chap. 9.

Chraplyvy, A. R.

R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
[CrossRef]

Constable, J. A.

J. A. Constable and I. H. White, Electron. Lett. 30, 140 (1994).
[CrossRef]

Derosier, R. M.

R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
[CrossRef]

Hamilton, D. S.

D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
[CrossRef]

Heiman, D.

D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
[CrossRef]

Hellwarth, R. W.

D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
[CrossRef]

Kikuchi, K.

T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
[CrossRef]

Nakayama, A.

T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
[CrossRef]

Ohashi, M.

K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
[CrossRef]

Okoshi, T.

T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
[CrossRef]

Shiraki, K.

K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
[CrossRef]

Tateda, M.

K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
[CrossRef]

Tkach, R. W.

R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
[CrossRef]

White, I. H.

J. A. Constable and I. H. White, Electron. Lett. 30, 140 (1994).
[CrossRef]

Electron Lett. (1)

T. Okoshi, K. Kikuchi, and A. Nakayama, Electron Lett. 16, 630 (1980).
[CrossRef]

Electron. Lett. (2)

J. A. Constable and I. H. White, Electron. Lett. 30, 140 (1994).
[CrossRef]

R. W. Tkach, A. R. Chraplyvy, and R. M. Derosier, Electron. Lett. 22, 1011 (1994).
[CrossRef]

J. Lightwave Technol. (1)

K. Shiraki, M. Ohashi, and M. Tateda, J. Lightwave Technol. 14, 50 (1996).
[CrossRef]

Phys. Rev. B (1)

D. Heiman, D. S. Hamilton, and R. W. Hellwarth, Phys. Rev. B 19, 6583 (1979).
[CrossRef]

Other (1)

G. P. Agrawal, Nonlinear Fiber Optics, 2nd ed. (Academic, New York, 1995), Chap. 9.

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Figures (4)

Fig. 1
Fig. 1

Principle of measuring multichannel laser linewidths and spacing with SBS. ν1ν3, multichannel laser frequencies; νS1νS3, Stokes-shifted frequencies; νB1νB3, beat frequencies.

Fig. 2
Fig. 2

Experimental setup for the measurement of the laser linewidths and channel spacing in multichannel with SBS. EDFA, erbium-doped fiber amplifier; C1, C2, 3-dB fiber couplers; PC, polarization controller. PD, photodiode; AMP., rf amplifier; RF-S.A., RF spectrum analyzer.

Fig. 3
Fig. 3

Stokes-shifted frequency as a function of the pump wavelength in the single-mode fiber (SMF), the dispersion-shifted fiber (DSF), and the dispersion-compensated fiber (DCF).

Fig. 4
Fig. 4

Experimental results: (a) single-channel delayed heterodyne beat spectrum obtained with SBS in SMF, (b) delayed self-heterodyne beat spectrum, and (c) dual-channel delayed heterodyne beat spectrum obtained with SBS in DCF.

Equations (3)

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νB=2nVa/λp,
νi-νj=kνBi-νBj,
gBν=gBνBΔνB/22/ν-νB2+ΔνB/22,

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